This article discusses how the Multi-angle Imaging SpectroRadiometer (MISR) instrument found on the Terra satellite is used to understand how particles in the atmosphere interact with sunlight and how particle pollution affects Earth's climate....(View More) Directions for building a demonstration model of MISR out of cardboard tubes is included, along with short activities to show how it's multiple viewing angles allow MISR to differentiate the kinds of particles in the air because they scatter light differently, depending on their size, shape, and composition.(View Less)